Apparatus for treating garbage.



Y mfmeao.- Patented sept. le, |902; A. S. WILSON. 4

APPARATUS FOR THEATING GARBAGE.

' (Applieetien f uea Apr. 11,19o2.)

2 shanty-Sheet I."

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No. 709,45d.. V Patented sept. le', |902.

s. E. WILSON;

APPARATUS FDR TBEATING `GARBAGE.

(Application med Apr. 11, 1902.)

(No Model.) 2 Sheets-Sheet 2,.

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,y namentli- We l the cnnty of WayneandkState 5` ofiMichigan, have-invented certain newand useful Improverncn in ApparatusforTreati* `inefiminineJ X lowing is a s ecification. t Mypresentinventionpertains .toan iino `proved apparatnsfor treatinggarbage, distillery lops,and`,`the likeforany substance contai ggrease,`inoisture, or liquid.

Th esentapplication isadivision of my appl ation, `Serial No. 650,936, `filed on` or d the` Like,'ot` which the folaboifitSepteinberf851897, said parent appli-i cation containing,r `claims to `the method of treating),r garbage,distiller lops, and the u like, which lnethodcan be apparatus set forth in the present application ratus is in partsimilar tothat set forth in `LettersPatent ot'tt eUnited Statesgzranted numbered 567,210.` i Y The object of the `present invention is to above` notednna'y be more 'economically treated. W l y A further objectpi' `the invention is the specially those f roi vapors result.

n which noxious gases and` myselfto the treatmentof anypariicnlar ma- @terial orhclass of`materials nor tothe prodnctio'n of` `nyparticnlar` ultimate product, astheapparatns lmay he used to treat vanu may be numerous Varied. .i 'lhe apparatus and method are, however, especially eii- `cacions `where 4the materialtobe treated re-` quires cookingand contains` grease which it is desired'to recover." .1 i 1 i `In the accompanyingdrawings, Figure l isl y frontelevationofinyimproved apparatus, fthree `combined digesting fand" compression "tanks being shown, though agi-eater or less numbermaybeemployed; Fig. 2, an-end ele- ATEST med outhy the `Themethod incidenttothe use of this appa-` `to meunder` ateo September 85, 1896, and

" `providean apparattisin which the sn bstances bringing about ofa more i sanitary condition 1` the treatment of the various substances,y

` Itfis` to be` nnderstood'thati` do not restrict* ons substances, andrtheresnltant products with valves d and d.

on ,-FRENCHLANDING, MICHIGANQ t APPARATosfioRiTREATilNGpcARBAeE. 1

y gpaitofLefnersratentrr. *zoaeadaatea septembf 13,1902.` l

wensten115.650.936. nivided and an application mdnprii 11,1902, jserin "i No.lOZil/if (No model.) i ,i

i vation,:thetanksbeingshownpartly insecf' VILsoN,a` v i i i tion.. @l d .1 Referringto said drawings, AAS, andCfdenote three tanks "providedjwitn manholes; D

for charging the` same,` and similar openinecifs` l Fim?! for `withdrawin0'the` rodnct rei a s n t snltant of the process. Said tanksfare provided near their lower ends, in line with manhole E, with a perforatebotfoinor gridRanan n nlar d raining-chamber F;a seriesof removable hollow perfor-ate drainingr-chambers G, designed to normally stand :on said grid,

a ierforale coilllyresting, as shown,"ongth,e f

the tank below the grid.

J denotes the supply-pipe `carrying:pressure, directly connected through` pipes K and,

and N, respectively.

Each of the tanks M and N` is provided with `manholesiM2 and M3, and each tank is likewise `provided with a draw-ofi", as M4 and M5, respectively. Pipe K is also provided with i grid, anda perfor-ate pipe II, extending into f ALwith the low andhigh pressure tanks `a presso re-gage K2, said page being connected s tothe pipe by a branchK. y The highpressnre tank m ust be placed at aipointbelow the perfor-ate grids of the tanks i `A, l, and C, so `that said tanks may drain thereto; but the relativelocation ofthe lowpressure tank` M is notso material. o, andi) are placed in pipes K andL, as shown inEigi.

` Coilll is connected which extends a pipe P,v provided `with a valve c, said ppe Pbein,r connected throneh` a suitable lateral branch P" with `pipe K.

with branch O, the endgof said branch O being connected to an npritghtpipo R, provided nected to supply-pipe J, Figi," thronghsnitable branches, such as J J2.; Said pipe R toa branch O, from VPipe Ris in turn conextends n p above the tanks and is connected` to pipesY, extendingiup `from the tanks, as shown, and is also connected to adeodorizer T, a Water-supply pipe U connecting with the opposite side of said deodorizer;` ApipeV extentie from said deodorizers into awastepipe X. A connection W is made from pipe s, Perforate `pipe l is also connected, as shown,

Yintoa blow-off vvmain S, suitable valves e `andf b'eing'placed, as show,n,.1tocontrolthe may be employed.

:passageof the fluid either into the deodorizer orin-to theyblowloff main. f The blow-off main `is also connected with eachv ofthe pipes I?, Fig.

l, byabra'n'ch'Z'and main Z'. Suitable valves, asshown, 'willbe employed .to control these :various pipes, vthe connections and'valves be-v fingfsuch'that thepressure may be dischargedk dire'ctlyinto the blow-Offler.` may be made to passthrough,thedeodorizersT. f i

- )No particuliftrforin of deodo'rizer is hereilr shown or described, as anycommercial form fMains Aandexte'nd below the tanks A,

pandO, the.forlnerbeing connected tothe t low-pressure tankM and the latter toI the -rhigh-pr'essure tank NQ lEachof the tanksA, i

fB, and C is"provided with adraw-off pipe C' as above. set forth has been found to work adat its lower end, said pipes C communicating.

with mains A andB" through suitable valved vconnections DFEl Fiets." 1 and 2. S` E) The arrangement of pipes and Vconnections Vantageously;` but any other `arrangement vwhich willy permit of the operation of the apy f .paratus about to beset forth'will suffice, and

I do not desire to'limit myself to the constructionillustrated.

l. :The operationof ythe apparatus-fis as fol-` l lows, assuming that the'matter under treatment is ordinary city garbage and it-is desired to dry the same and recover any grease which may be contained therein: In the practical i operation of the apparatus in theltreatment of garbage I find steam to give excellent ref sults as the cookingand compressing agent,

though hot air or hot vapors such as arisefrom naphthajmay be employed in carrying outthe process. Forthe pur-poseof explanation it will be presumed that tanks A` andB have been fullyl charged, and the connections are 'such-that the cooking agent, in the present instance steam, Will pass fromthe supply-main r vJthrough branches- J` J2, pipe R,and branch Q intoqthe coils H and perforat-e pipes I, pipes `thecooking process is going/von.' The cook- Y being open to the deodorizers T inorder to allow escape of steam which is desirable when ing agent issuing-from coils H and perforate pipes I will passup through the mass and i i thoroughly cook the. same', thelength of time ffss 'required being determined by the-nature of the material under treatment. lVhen the matter hasbeensufflciently cooked, valves e i .are closed and valves` d opened, 'allowing pressure to enter into the tops of the tanks A and B from pipe J through pipes Y. Valve vb is opened'to allow pressure from-pipe .I to

- `be maintainedin tank N.` `VValves d are then closed, cutting o supply from pipey J Atothe perforate coils H and pipesl. The valves in branch E are opened and' pressure admitted therefrom,`as fullyl set forth in my previousl Jpatent.'4

` Communication through thegbranch Y, extending from pipe Zto thev i branch ,Oiscontrolled through valves Z2.

therein. closed, 'as are also the valves d' of each of theV of thetanks A- and *13,2 thereby establishing lequalpressureA upon all faces of the charge` from tank Ntlirough main Bv to `the bottom 4, t

within said tanksmldiforeinggth@ liquidi" -So far: the processie similar to that described in my formerpatentabove alluded to;V ybut I have found thatafter expressing all lthe `liquidpossible in'this manner the material may be further dried by what I termv penei ytration of the `material by, the y pressing agentf 'loloringl aboutgthis resultvalves in branch'll` communicating with tan-ks A and 1B" are closed, shutting off communication withgh'igh-'pressuretank N. f Valve a inpipe `-K -is manipulated "until the desired pressure y .is secured withinthe low-pressureftan-kM,I

whenr tllebranches DT areopened, connectingV the betteln of the tanks- Al and B, throughmain A", with tank'M. lPressure being still- "maintained in the upper parts ofthe tanks A and B moisture'willbe forced from the material through branches D intothe low-pres-Y sure tank M, the valve a being so maniputain theproper pressure Within said tank M necessary to this res/ult.,` This is carried on untill the-Huid `under pressure being used penetrates the material Ein ytanks A and B and begins to` enter the tank M, whichfact will bei'mmediately shown.` by the pressuregageusedgin connection therewith. Valve a isthenfclosed' and valves g and c (of tank C) opened,l permittingthe fluid-pressure to pass through-pipe `l into the cookingfcoil and perforate pipe I of tank C. The'extent to which these valves g and c areopened will be determined by the pressure indicated upon 'the gage carried bytankM. When the pressure within. tank C nearly equals that in tank M, which factwill be indicated by the n rlatedand regulated'a's to secure and main- IICSOr gages carried by the tanks `M-and C, 'respectively, valves gl and care opened wide andy valve e of tank C opened. vSaid valve e will v .bel so manipulatedl asl to allow escape of presvalve d of tank C opened to permit the cooking agent to pass frommain J into the cooking apparat'us and complete the vcooking operation Valves in branches D' are then tanks A and B, and valvesfin pipes Wkopened.

' into theinain S, thus blowing o thetanks A and B preparatory to withdrawing the charge therefrom. The pressure may be ,dischang'edv directlyv out of lthe' blow-olf main S or, may

` through suitable connections'be carried into the cooking apparatus of Va fourth tank, or, if-

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Isg y and compression tanks, it is to be understood the material, forthe reason that the contained water will act as a piston and cakethe mate-` rial upon the grid, according to lthe amount of water present. f

By the method above set forth of first subjecting the mass to pressure upon all sides and pressingand finally penetrating it from one surface to the other this objection is elimi` natedand a relatively dry mass obtained.

From actual operation of the apparatus as above set forth it is found that the mass which is left in the tanks after the `process is finished is quite dry and free from grease. The process carried out in the apparatus *as set forth isodorless and is therefore not objectionable, as is the case with theV methods now invogue. b Vhile I have shown only three digesting that `I do 'not desire to limit myself thereto, as the method may be carried out with economy with a greater or less number of tanks, according to the quality of material to be treated, some ofthe tanks beingused for compression or extraction of the liquicl,"while others are used to cook thematerial. Each tank, as shown, will be provided with a gage, so that the operator may know exactly with what pressure he is working. v

While I have for the purpose of explanation taken garbage as the matter under treatment,`

I donot desireto confine myself to the treatment of thatmatter, as other substances may be treated to advantage inthe manner above set forth. So, too, fluid other than steam may be employed, and whileI have referred to tank M as a low-pressure tank the term is employed nsimply in its relative sense.

If founddesirable, low-pressu re tank M may be dispensed with and tank N used both as a high and a low pressure tank, the pressure therein being variedaccording as one or another step of the process is being carried out.

In thecooking-tanks during the operation of bothcooking and pressing the work can be accomplished with almost any degree of pres- Given a long time, steam at five or ten pounds pressure would cook a charge. A charge could also `be cooked just so much quicker with steam at one hundred and fifty pounds pressure,providing the apparatus was so constructed as to withstand the strain. In

practical use, however, I have obtained the working pressure and may run down to a few pounds to the square inch. The degree of pressure maintained in these `tanks will' of i course vary with the pressure used in the apparatusand also according to the material under treatment. Having thus described myinvention, what I claim is l. In an apparatus for treating garbage and `like material, the combination of a series of digestingtanks; a iluidsupply connected thereto; a high-pressure tank connected with said uidsupply and with the series of digesting-tanks; a low-pressure tank; connections between said low-pressu re tank andthe drawofflof said digesting-tanks; and connections betweensaid low-pressure tank and the cooking apparatus of said digesting-tanks.

2. In an apparatus for treating garbage and the like; the combination of a series of digesting and compression tanks; a fluid-pressuresupply pipe connected thereto with the cooking apparatus thereof and with the top of said tanks; a high-pressure tank connected with the fluid-supply and with the draw-oit of said digesting tanks; a lowpressure tank connected with the draw-off of said digestingtanks; a blow-off main; and connections between said blow-off main and the cooking apparatus of the digesting-tanks, substantiallysure supply and the draw-off ofthe digestingt tanks; a low-pressure tank connected to the draw-olf of the digesting-tanks and also with the duid-pressure supply; a blow-oit` main;

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connections between said blow-off main and the low-pressure tank; a deodorizerinterme-` diate the blow-off main and the connections from the low-pressu re tank; anda water-supply for said deodorizer.

It. In an apparatus for treating garbage-and the like, the combination of a series of digesting-tan ks; cooking apparatus for said tanks; a low-pressure tank connected to said digesting-tanks; and connections between said Iowpressure tank and said cooking apparatus, substantially as described, whereby the cooking agent may be passed from `said low-pressure tank into the cooking apparatus of -the digesting-tanks. y

In testimony whereof I have signed my name to this specification in the two subscribing witnesses..

STEPHEN E. VILSON.

presence of IIO 

